Camera optical lens

ABSTRACT

The present invention includes a camera optical lens. The camera optical lens including, in an order from an object side to an image side, a first lens, a second lens having a positive refractive power, a third lens having a negative refractive power, a fourth lens, a fifth lens, and a sixth lens. The first lens is made of glass material, the second lens is made of plastic material, the third lens is made of plastic material, the fourth lens is made of glass material, the fifth lens is made of plastic material, and the sixth lens is made of plastic material. The camera optical lens further satisfies specific conditions.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the priority benefit of Chinese PatentApplication Ser. No. 201810387548.4 and Ser. No. 201810387547.X filed onApr. 26, 2018, the entire content of which is incorporated herein byreference.

FIELD OF THE PRESENT DISCLOSURE

The present disclosure relates to optical lens, in particular to acamera optical lens suitable for handheld devices such as smart phonesand digital cameras and imaging devices.

DESCRIPTION OF RELATED ART

With the emergence of smart phones in recent years, the demand forminiature camera lens is increasing day by day, but the photosensitivedevices of general camera lens are no other than Charge Coupled Device(CCD) or Complementary metal-Oxide Semiconductor Sensor (CMOS sensor),and as the progress of the semiconductor manufacturing technology makesthe pixel size of the photosensitive devices shrink, coupled with thecurrent development trend of electronic products being that theirfunctions should be better and their shape should be thin and small,miniature camera lens with good imaging quality therefor has become amainstream in the market. In order to obtain better imaging quality, thelens that is traditionally equipped in mobile phone cameras adopts athree-piece or four-piece lens structure. And, with the development oftechnology and the increase of the diverse demands of users, and underthis circumstances that the pixel area of photosensitive devices isshrinking steadily and the requirement of the system for the imagingquality is improving constantly, the five-piece, six-piece andseven-piece lens structure gradually appear in lens design. There is anurgent need for ultra-thin wide-angle camera lenses which have goodoptical characteristics and the chromatic aberration of which is fullycorrected.

BRIEF DESCRIPTION OF THE DRAWINGS

Many aspects of the exemplary embodiments can be better understood withreference to the following drawings. The components in the drawing arenot necessarily drawn to scale, the emphasis instead being placed uponclearly illustrating the principles of the present disclosure.

FIG. 1 is a schematic diagram of a camera optical lens in accordancewith a first embodiment of the present invention;

FIG. 2 shows the longitudinal aberration of the camera optical lensshown in FIG. 1;

FIG. 3 shows the lateral color of the camera optical lens shown in FIG.1;

FIG. 4 presents a schematic diagram of the field curvature anddistortion of the camera optical lens shown in FIG. 1;

FIG. 5 is a schematic diagram of a camera optical lens in accordancewith a second embodiment of the present invention;

FIG. 6 presents the longitudinal aberration of the camera optical lensshown in FIG. 5;

FIG. 7 presents the lateral color of the camera optical lens shown inFIG. 5;

FIG. 8 presents the field curvature and distortion of the camera opticallens shown in FIG. 5;

FIG. 9 is a schematic diagram of a camera optical lens in accordancewith a third embodiment of the present invention;

FIG. 10 presents the longitudinal aberration of the camera optical lensshown in FIG. 9;

FIG. 11 presents the lateral color of the camera optical lens shown inFIG. 9;

FIG. 12 presents the field curvature and distortion of the cameraoptical lens shown in FIG. 9.

DETAILED DESCRIPTION OF THE EXEMPLARY EMBODIMENTS

The present disclosure will hereinafter be described in detail withreference to several exemplary embodiments. To make the technicalproblems to be solved, technical solutions and beneficial effects of thepresent disclosure more apparent, the present disclosure is described infurther detail together with the figure and the embodiments. It shouldbe understood the specific embodiments described hereby is only toexplain the disclosure, not intended to limit the disclosure.

Embodiment 1

As referring to FIG. 1, the present invention provides a camera opticallens 10. FIG. 1 shows the camera optical lens 10 of embodiment 1 of thepresent invention, the camera optical lens 10 comprises 6 lenses.Specifically, from the object side to the image side, the camera opticallens 10 comprises in sequence: an aperture S1, a first lens L1, a secondlens L2, a third lens L3, a fourth lens L4, a fifth lens L5, and a sixthlens L6. Optical element like optical filter GF can be arranged betweenthe sixth lens L6 and the image surface Si. The first lens L1 is made ofglass material, the second lens L2 is made of plastic material, thethird lens L3 is made of plastic material, the fourth lens L4 is made ofglass material, the fifth lens L5 is made of plastic material, and thesixth lens L6 is made of plastic material.

The second lens L2 has a positive refractive power, and the third lensL3 has a negative refractive power.

Here, the focal length of the whole camera optical lens 10 is defined asf, the focal length of the first lens is defined as f1. The cameraoptical lens further satisfies the following condition: 0.5≤f1/f≤10.Condition 0.5≤f1/f≤10 fixes the positive refractive power of the firstlens L1. If the lower limit of the set value is exceeded, although itbenefits the ultra-thin development of lenses, but the positiverefractive power of the first lens L1 will be too strong, problem likeaberration is difficult to be corrected, and it is also unfavorable forwide-angle development of lens. On the contrary, if the upper limit ofthe set value is exceeded, the positive refractive power of the firstlens L1 becomes too weak, it is then difficult to develop ultra-thinlenses. Preferably, the following condition shall be satisfied,0.91≤f1/f≤9.09.

The refractive index of the first lens L1 is defined as n1. Here thefollowing condition should satisfied: 1.7≤n1≤2.2. This condition fixesthe refractive index of the first lens L1, and refractive index withinthis range benefits the ultra-thin development of lenses, and it alsobenefits the correction of aberration. Preferably, the followingcondition shall be satisfied, 1.72≤n1≤2.12.

The refractive index of the fourth lens L4 is defined as n4. Here thefollowing condition should satisfied: This condition fixes therefractive index of the t fourth lens L4, and refractive index withinthis range benefits the ultra-thin development of lenses, and it alsobenefits the correction of aberration. Preferably, the followingcondition shall be satisfied, 1.73≤n4≤2.13.

When the focal length of the camera optical lens 10 of the presentinvention, the focal length of each lens, the refractive power of therelated lens, and the total optical length, the thickness on-axis andthe curvature radius of the camera optical lens satisfy the aboveconditions, the camera optical lens 10 has the advantage of highperformance and satisfies the design requirement of low TTL.

In this embodiment, the first lens L1 has a positive refractive powerwith a convex object side surface relative to the proximal axis and aconcave image side surface relative to the proximal axis.

The curvature radius of the object side surface of the first lens L1 isdefined as R1, the curvature radius of the image side surface of thefirst lens L1 is defined as R2. The camera optical lens 10 furthersatisfies the following condition: −73.78≤(R1+R2)/(R1−R2)≤−2.8, bywhich, the shape of the first lens L1 can be reasonably controlled andit is effectively for correcting spherical aberration of the cameraoptical lens. Preferably, the condition −46.11≤(R1+R2)/(R1−R2)≤−3.49shall be satisfied.

The thickness on-axis of the first lens L1 is defined as d1. Thefollowing condition: 0.02≤d1/TTL≤0.1 should be satisfied. When thecondition is satisfied, it is beneficial for realization of theultra-thin lens. Preferably, the condition 0.04≤d1/TTL≤0.08 shall besatisfied.

In this embodiment, the second lens L2 has a positive refractive powerwith a convex object side surface relative to the proximal axis and aconcave image side surface relative to the proximal axis.

The focal length of the whole camera optical lens 10 is f, the focallength of the second lens L2 is f2. The following condition should besatisfied: 0.76≤f2/f≤7.23. When the condition is satisfied, the positiverefractive power of the second lens L2 is controlled within reasonablescope, the spherical aberration caused by the first lens L1 which haspositive refractive power and the field curvature of the system then canbe reasonably and effectively balanced. Preferably, the condition1.22≤f2/f≤5.79 should be satisfied.

The curvature radius of the object side surface of the second lens L2 isdefined as R3, the curvature radius of the image side surface of thesecond lens L2 is defined as R4. The following condition should besatisfied: −4.15≤(R3+R4)/(R3−R4)≤−0.91, which fixes the shape of thesecond lens L2 and when beyond this range, with the development into thedirection of ultra-thin and wide-angle lenses, problem like chromaticaberration of the on-axis is difficult to be corrected. Preferably, thefollowing condition shall be satisfied, −2.59≤(R3+R4)/(R3−R4)≤−1.14.

The thickness on-axis of the second lens L2 is defined as d3. Thefollowing condition: 0.05≤d3/TTL≤0.17 should be satisfied. When thecondition is satisfied, it is beneficial for realization of theultra-thin lens. Preferably, the condition 0.08≤d3/TTL≤0.14 shall besatisfied.

In this embodiment, the third lens L3 has a negative refractive powerwith a convex object side surface relative to the proximal axis and aconcave image side surface relative to the proximal axis.

The focal length of the whole camera optical lens 10 is f, the focallength of the third lens L3 is f3. The following condition should besatisfied: −4.5≤f3/f≤−1.23, by which, the field curvature of the systemthen can be reasonably and effectively balanced, so that the imagequality can be effectively improved. Preferably, the condition−2.81≤f3/f≤−1.54 should be satisfied.

The curvature radius of the object side surface of the third lens L3 isdefined as R5, the curvature radius of the image side surface of thethird lens L3 is defined as R6. The following condition should besatisfied: 1.24≤(R5+R6)/(R5−R6)≤4.14, by which, the shape of the thirdlens L3 can be effectively controlled, it is beneficial for the shapingof the third lens L3 and bad shaping and stress generation due to extralarge curvature of surface of the third lens L3 can be avoided.Preferably, the following condition shall be satisfied,1.99≤(R5+R6)/(R5−R6)≤3.31.

The thickness on-axis of the third lens L3 is defined as d5. Thefollowing condition: 0.02≤d5/TTL≤0.09 should be satisfied. When thecondition is satisfied, it is beneficial for realization of theultra-thin lens. Preferably, the condition 0.03≤d5/TTL≤0.07 shall besatisfied.

In this embodiment, the fourth lens L4 has a positive refractive powerwith a convex object side surface to the proximal axis and a conveximage side surface relative to the proximal axis.

The focal length of the whole camera optical lens 10 is f, the focallength of the fourth lens L4 is f4. The following condition should besatisfied: 0.79≤f4/f≤2.61. When the condition is satisfied, the positiverefractive power of the fourth lens L4 is distributed reasonably, whichcan effectively reduce the sensitivity of lens group used in camera andfurther enhance the imaging quality. Preferably, the condition1.26≤f4/f≤2.09 should be satisfied.

The curvature radius of the object side surface of the fourth lens L4 isdefined as R7, the curvature radius of the image side surface of thefourth lens L4 is defined as R8. The following condition should besatisfied: −1.84≤(R7+R8)/(R7−R8)≤−0.24, by which, the shape of thefourth lens L4 is fixed, further, when beyond this range, with thedevelopment into the direction of ultra-thin and wide-angle lenses,problem like aberration of the off-axis picture angle is difficult to becorrected. Preferably, the following condition shall be satisfied,−1.15≤(R7+R8)/(R7−R8)≤−0.3.

The thickness on-axis of the fourth lens L4 is defined as d7. Thefollowing condition: 0.03≤d7/TTL≤0.12 should be satisfied. When thecondition is satisfied, it is beneficial for realization of theultra-thin lens. Preferably, the condition 0.05≤d7/TTL≤0.1 shall besatisfied.

In this embodiment, the fifth lens L5 has a negative refractive powerwith a concave object side surface relative to the proximal axis and aconvex image side surface relative to the proximal axis.

The focal length of the whole camera optical lens 10 is f, the focallength of the fifth lens L5 is f5. The following condition should besatisfied: −6.19≤f5/f≤−1.32, which can effectively smooth the lightangles of the camera and reduce the tolerance sensitivity. Preferably,the condition −3.87≤f5/f≤−1.65 should be satisfied.

The curvature radius of the object side surface of the fifth lens L5 isdefined as R9, the curvature radius of the image side surface of thefifth lens L5 is defined as R10. The following condition should besatisfied: −6.72≤(R9+R10)/(R9−R10)≤−1.47, by which, the shape of thefifth lens L5 is fixed, further, when beyond this range, with thedevelopment into the direction of ultra-thin and wide-angle lenses,problem like aberration of the off-axis picture angle is difficult to becorrected. Preferably, the following condition shall be satisfied,−4.2≤(R9+R10)/(R9−R10)≤−1.84.

The thickness on-axis of the fifth lens L5 is defined as d9. Thefollowing condition: 0.02≤d9/TTL≤0.13 should be satisfied. When thecondition is satisfied, it is beneficial for realization of theultra-thin lens. Preferably, the condition 0.04≤d9/TTL≤0.11 shall besatisfied.

In this embodiment, the sixth lens L6 has a positive refractive powerwith a convex object side surface relative to the proximal axis and aconcave image side surface relative to the proximal axis.

The focal length of the whole camera optical lens 10 is f, the focallength of the sixth lens L6 is f6. The following condition should besatisfied: 0.89≤f6/f≤17.19. When the condition is satisfied, thepositive refractive power of the sixth lens L6 is distributedreasonably, which can effectively reduce the sensitivity of lens groupused in camera and further enhance the imaging quality. Preferably, thecondition 1.42≤f6/f≤13.75 should be satisfied.

The curvature radius of the object side surface of the sixth lens L6 isdefined as R11, the curvature radius of the image side surface of thesixth lens L6 is defined as R12. The following condition should besatisfied: 8.92≤(R11+R12)/(R11−R12)≤4112.79, by which, the shape of thesixth lens L6 is fixed, further, when beyond this range, with thedevelopment into the direction of ultra-thin and wide-angle lenses,problem like aberration of the off-axis picture angle is difficult to becorrected. Preferably, the following condition shall be satisfied,14.27≤(R11+R12)/(R11−R12)≤3290.23.

The thickness on-axis of the sixth lens L6 is defined as d11. Thefollowing condition: 0.08≤d11/TTL≤0.26 should be satisfied. When thecondition is satisfied, it is beneficial for realization of theultra-thin lens. Preferably, the condition 0.13≤d11/TTL≤0.21 shall besatisfied.

The focal length of the whole camera optical lens 10 is f, the combinedfocal length of the first lens L1 and the second lens L2 is f12. Thefollowing condition should be satisfied: 0.52≤f12/f≤2.03, which caneffectively avoid the aberration and field curvature of the cameraoptical lens, and can suppress the rear focal length for maintainingcamera lens miniaturization characteristics. Preferably, the condition0.83≤f12/f≤1.62 should be satisfied.

In this embodiment, the total optical length TTL of the camera opticallens 10 is less than or equal to 5.95 mm, it is beneficial for therealization of ultra-thin lenses. Preferably, the total optical lengthTTL of the camera optical lens 10 is less than or equal to 5.68 mm.

In this embodiment, the aperture F number of the camera optical lens 10is less than or equal to 2.06 A large aperture has better imagingperformance. Preferably, the aperture F number of the camera opticallens 10 is less than or equal to 2.02.

With such design, the total optical length TTL of the whole cameraoptical lens 10 can be made as short as possible, thus theminiaturization characteristics can be maintained.

In the following, an example will be used to describe the camera opticallens 10 of the present invention. The symbols recorded in each exampleare as follows. The unit of distance, radius and center thickness is mm.

TTL: Optical length (the distance on-axis from the object side surfaceof the first lens L1 to the image surface).

Preferably, inflexion points and/or arrest points can also be arrangedon the object side surface and/or image side surface of the lens, sothat the demand for high quality imaging can be satisfied, thedescription below can be referred for specific implementable scheme.

The design information of the camera optical lens 10 in the firstembodiment of the present invention is shown in the following, the unitof the focal length, distance, radius and center thickness is mm.

The design information of the camera optical lens 10 in the firstembodiment of the present invention is shown in the tables 1 and 2.

TABLE 1 R d nd νd S1 ∞ d0 = −0.200 R1 2.511 d1 = 0.358 nd1 1.7559 ν136.43 R2 2.776 d2 = 0.052 R3 3.413 d3 = 0.572 nd2 1.6089 ν2 70.00 R421.435 d4 = 0.050 R5 5.961 d5 = 0.277 nd3 1.5970 ν3 24.97 R6 2.791 d6 =0.216 R7 5.724 d7 = 0.339 nd4 1.7577 ν4 70.00 R8 −135.669 d8 = 0.601 R9−2.768 d9 = 0.254 nd5 1.5309 ν5 40.00 R10 −7.365 d10 = 0.312 R11 1.201d11 = 0.875 nd6 1.5780 ν6 50.98 R12 1.184 d12 = 0.632 R13 ∞ d13 = 0.210ndg 1.5168 νg 64.17 R14 ∞ d14 = 0.629

Where:

In which, the meaning of the various symbols is as follows.

S1: Aperture;

R: The curvature radius of the optical surface, the central curvatureradius in case of lens;

R1: The curvature radius of the object side surface of the first lensL1;

R2: The curvature radius of the image side surface of the first lens L1;

R3: The curvature radius of the object side surface of the second lensL2;

R4: The curvature radius of the image side surface of the second lensL2;

R5: The curvature radius of the object side surface of the third lensL3;

R6: The curvature radius of the image side surface of the third lens L3;

R7: The curvature radius of the object side surface of the fourth lensL4;

R8: The curvature radius of the image side surface of the fourth lensL4;

R9: The curvature radius of the object side surface of the fifth lensL5;

R10: The curvature radius of the image side surface of the fifth lensL5;

R11: The curvature radius of the object side surface of the sixth lensL6;

R12: The curvature radius of the image side surface of the sixth lensL6;

R13: The curvature radius of the object side surface of the opticalfilter GF;

R14: The curvature radius of the image side surface of the opticalfilter GF;

d: The thickness on-axis of the lens and the distance on-axis betweenthe lens;

d0: The distance on-axis from aperture S1 to the object side surface ofthe first lens L1;

d1: The thickness on-axis of the first lens L1;

d2: The distance on-axis from the image side surface of the first lensL1 to the object side surface of the second lens L2;

d3: The thickness on-axis of the second lens L2;

d4: The distance on-axis from the image side surface of the second lensL2 to the object side surface of the third lens L3;

d5: The thickness on-axis of the third lens L3;

d6: The distance on-axis from the image side surface of the third lensL3 to the object side surface of the fourth lens L4;

d7: The thickness on-axis of the fourth lens L4;

d8: The distance on-axis from the image side surface of the fourth lensL4 to the object side surface of the fifth lens L5;

d9: The thickness on-axis of the fifth lens L5;

d10: The distance on-axis from the image side surface of the fifth lensL5 to the object side surface of the sixth lens L6;

d11: The thickness on-axis of the sixth lens L6;

d12: The distance on-axis from the image side surface of the sixth lensL6 to the object side surface of the optical filter GF;

d13: The thickness on-axis of the optical filter GF;

d14: The distance on-axis from the image side surface to the imagesurface of the optical filter GF;

nd: The refractive index of the d line;

nd1: The refractive index of the d line of the first lens L1;

nd2: The refractive index of the d line of the second lens L2;

nd3: The refractive index of the d line of the third lens L3;

nd4: The refractive index of the d line of the fourth lens L4;

nd5: The refractive index of the d line of the fifth lens L5;

nd6: The refractive index of the d line of the sixth lens L6;

ndg: The refractive index of the d line of the optical filter GF;

vd: The abbe number;

v1: The abbe number of the first lens L1;

v2: The abbe number of the second lens L2;

v3: The abbe number of the third lens L3;

v4: The abbe number of the fourth lens L4;

v5: The abbe number of the fifth lens L5;

v6: The abbe number of the sixth lens L6;

vg: The abbe number of the optical filter GF.

Table 2 shows the aspherical surface data of the camera optical lens 10in the embodiment 1 of the present invention.

TABLE 2 Conic Index Aspherical Surface Index k A4 A6 A8 A10 A12 A14 A16R1 −3.6566E−01 −0.013206249 0.00442317 −0.013738732 0.014166202−0.009815927 0.004024012 −0.000897132 R2 3.3014E+00 −0.023390519−0.047670469 0.03654063 0.003393801 −0.014775662 0.003182992−0.001002759 R3 4.8700E+00 0.01502365 −0.042732398 0.0014499960.042922884 −0.022732421 −0.00025338 −0.000550475 R4 2.5807E+02−0.017345877 0.008637415 −0.12394814 0.078436355 0.01621613 −0.014802148−0.000320704 R5 1.7872E+01 −0.11326764 0.003590269 −0.039200978−0.034361588 0.085975515 −0.030900235 0.000880627 R6 −2.7155E+01−0.010066123 0.031535269 −0.14137318 0.19817948 −0.12713647 0.032183359−0.001186433 R7 −8.9955E+01 −0.026758034 −0.006069638 0.06910686−0.059903257 −0.002042807 0.026324053 −0.010210733 R8 −3.2516E+02−0.01204298 −0.07357625 0.12825254 −0.096965046 0.041562868 −0.007498957−0.000262739 R9 −3.1911E+01 0.097718729 −0.30023557 0.39650595−0.43652248 0.30542708 −0.11616865 0.017824116 R10 1.2171E+01 −0.14767560.21034113 −0.26176835 0.17489919 −0.065055121 1.27E−02 −9.57E−04 R11−5.2592E+00 −0.1476756 0.028865624 −0.003554004 3.04724E−05 4.48E−052.55E−06 −1.02E−06 R12 −3.9055E+00 −0.12132815 0.017691577 −0.0027475280.000178282 2.29E−06 −7.32E−07 1.59E−08

Among them, K is a conic index, A4, A6, A8, A10, Al2, A14, A16 areaspheric surface indexes.

IH: Image heighty=(x ² /R)/[1+{1−(k+1)(x ² /R ²)}^(1/2)]+A4x ⁴ +A6x ⁶ +A8x ⁸ +A10x ¹⁰+A12x ¹² +A14x ¹⁴ +A16x ¹⁶  (1)

For convenience, the aspheric surface of each lens surface uses theaspheric surfaces shown in the above condition (1). However, the presentinvention is not limited to the aspherical polynomials form shown in thecondition (1).

Table 3 and table 4 show the inflexion points and the arrest pointdesign data of the camera optical lens 10 lens in embodiment 1 of thepresent invention. In which, P1R1 and P1R2 represent respectively theobject side surface and image side surface of the first lens L1, P2R1and P2R2 represent respectively the object side surface and image sidesurface of the second lens L2, P3R1 and P3R2 represent respectively theobject side surface and image side surface of the third lens L3, P4R1and P4R2 represent respectively the object side surface and image sidesurface of the fourth lens L4, P5R1 and P5R2 represent respectively theobject side surface and image side surface of the fifth lens L5, P6R1and P6R2 represent respectively the object side surface and image sidesurface of the sixth lens L6. The data in the column named “inflexionpoint position” are the vertical distances from the inflexion pointsarranged on each lens surface to the optic axis of the camera opticallens 10. The data in the column named “arrest point position” are thevertical distances from the arrest points arranged on each lens surfaceto the optic axis of the camera optical lens 10.

TABLE 3 Inflexion point Inflexion point Inflexion point Inflexion pointnumber position 1 position 2 position 3 P1R1 1 1.095 P1R2 1 1.065 P2R1 11.075 P2R2 3 0.415 1.085 1.125 P3R1 2 0.375 1.015 P3R2 2 0.645 1.235P4R1 1 1.045 P4R2 2 0.905 1.225 P5R1 1 1.415 P5R2 1 1.425 P6R1 1 0.535P6R2 1 0.705

TABLE 4 Arrest Arrest Arrest point number point position 1 pointposition 2 P1R1 0 P1R2 0 P2R1 0 P2R2 1 0.605 P3R1 2 0.615 1.185 P3R2 21.125 1.285 P4R1 1 1.185 P4R2 2 1.195 1.235 P5R1 0 P5R2 0 P6R1 1 1.115P6R2 1 1.685

FIG. 2 and FIG. 3 show the longitudinal aberration and lateral colorschematic diagrams after light with a wavelength of 486.1 nm, 587.6 nmand 656.3 nm passes the camera optical lens 10 in the first embodiment.FIG. 4 shows the field curvature and distortion schematic diagrams afterlight with a wavelength of 587.6 nm passes the camera optical lens 10 inthe first embodiment, the field curvature S in FIG. 4 is a fieldcurvature in the sagittal direction, T is a field curvature in themeridian direction.

Table 13 shows the various values of the embodiments 1, 2, 3, and thevalues corresponding with the parameters which are already specified inthe conditions.

As shown in Table 13, the first embodiment satisfies the variousconditions.

In this embodiment, the pupil entering diameter of the camera opticallens is 2.1979 mm, the full vision field image height is 3.512 mm, thevision field angle in the diagonal direction is 80.13°, it haswide-angle and is ultra-thin, its on-axis and off-axis chromaticaberrations are fully corrected, and it has excellent opticalcharacteristics.

Embodiment 2

Embodiment 2 is basically the same as embodiment 1, the meaning of itssymbols is the same as that of embodiment 1, in the following, only thedifferences are described.

Table 5 and table 6 show the design data of the camera optical lens 20in embodiment 2 of the present invention.

TABLE 5 R d nd νd S1 ∞ d0 = −0.162 R1 2.291 d1 = 0.234 nd1 2.0303 ν144.47 R2 3.725 d2 = 0.047 R3 6.832 d3 = 0.597 nd2 1.5294 ν2 30.07 R419.545 d4 = 0.039 R5 6.265 d5 = 0.222 nd3 1.6339 ν3 21.00 R6 2.666 d6 =0.213 R7 9.998 d7 = 0.429 nd4 2.0691 ν4 69.01 R8 −21.105 d8 = 0.545 R9−3.060 d9 = 0.464 nd5 1.5690 ν5 56.18 R10 −5.654 d10 = 0.341 R11 1.804d11 = 0.915 nd6 1.5186 ν6 69.01 R12 1.612686 d12 = 0.468 R13 ∞ d13 =0.210 ndg 1.5168 νg 64.17 R14 ∞ d14 = 0.461

Table 6 shows the aspherical surface data of each lens of the cameraoptical lens 20 in embodiment 2 of the present invention.

TABLE 6 Conic Index Aspherical Surface Index k A4 A6 A8 A10 A12 A14 A16R1 −3.0697E−01 −0.022316426 −0.007999664 −0.016208554 0.013273273−0.008768999 0.005761436 −0.001170638 R2 7.2969E+00 −0.031674434−0.048347004 0.03265114 0.003102997 −0.01397291 0.003911779 −0.001525644R3 1.0427E+01 0.045273862 −0.029455494 0.010652185 0.041595068−0.030576584 −0.00252163 0.000787359 R4 −4.8718E+02 −0.0237278770.020033645 −0.14516123 0.06920452 0.01453843 −0.012435101 0.001659874R5 1.6033E+00 −0.11979612 −0.003395455 −0.034699973 −0.030477730.088233154 −0.031730738 0.001141784 R6 −1.0128E+01 −0.0260843140.042716916 −0.12040576 0.19776717 −0.13178815 0.032006548 0.000568035R7 −4.8664E+02 0.004120097 −0.017760363 0.064611099 −0.055686018−0.001634841 0.02525535 −0.009299127 R8 −1.6111E+03 0.002091398−0.074948812 0.12559634 −0.097723428 0.042376925 −0.006801107−0.000334751 R9 −8.8734E+01 0.14631972 −0.28671456 0.39354218−0.43985108 0.30484721 −0.11615789 0.017966162 R10 −7.8666E+01−0.08951524 0.21097273 −0.26345929 0.17415663 −0.065286901 1.27E−02−9.81E−04 R11 −2.5159E+01 −0.08951524 0.030926918 −0.0031075977.33111E−05 4.62E−05 1.39E−06 −1.34E−06 R12 −8.3363E+00 −0.137862390.017202094 −0.002716467 0.000180412 2.46E−06 −6.36E−07 4.38E−09

Table 7 and table 8 show the inflexion points and the arrest pointdesign data of the camera optical lens 20 lens in embodiment 2 of thepresent invention.

TABLE 7 Inflexion point Inflexion point Inflexion point Inflexion pointnumber position 1 position 2 position 3 P1R1 1 0.905 P1R2 1 0.935 P2R1 10.995 P2R2 1 0.355 P3R1 2 0.335 0.995 P3R2 P4R1 1 1.165 P4R2 1 0.845P5R1 3 0.335 0.665 1.425 P5R2 P6R1 3 0.365 1.685 2.095 P6R2 1 0.575

TABLE 8 Arrest point number Arrest point position 1 Arrest pointposition 2 P1R1 P1R2 P2R1 P2R2 1 0.545 P3R1 2 0.565 1.165 P3R2 P4R1 P4R21 1.065 P5R1 P5R2 P6R1 1 0.735 P6R2 1 1.235

FIG. 6 and FIG. 7 show the longitudinal aberration and lateral colorschematic diagrams after light with a wavelength of 486.1 nm, 587.6 nmand 656.3 nm passes the camera optical lens 20 in the second embodiment.FIG. 8 shows the field curvature and distortion schematic diagrams afterlight with a wavelength of 587.6 nm passes the camera optical lens 20 inthe second embodiment.

As shown in Table 13, the second embodiment satisfies the variousconditions.

In this embodiment, the pupil entering diameter of the camera opticallens is 2.025 mm, the full vision field image height is 3.512 mm, thevision field angle in the diagonal direction is 81.86°, it haswide-angle and is ultra-thin, its on-axis and off-axis chromaticaberrations are fully corrected, and it has excellent opticalcharacteristics.

Embodiment 3

Embodiment 3 is basically the same as embodiment 1, the meaning of itssymbols is the same as that of embodiment 1, in the following, only thedifferences are described.

Table 9 and table 10 show the design data of the camera optical lens 30in embodiment 3 of the present invention.

TABLE 9 R d nd νd S1 ∞ d0 = −0.188 R1 2.603 d1 = 0.341 nd1 1.7310 ν130.00 R2 2.749 d2 = 0.046 R3 3.343 d3 = 0.563 nd2 1.6183 ν2 70.00 R421.470 d4 = 0.046 R5 5.957 d5 = 0.313 nd3 1.5774 ν3 24.62 R6 2.772 d6 =0.214 R7 5.553 d7 = 0.342 nd4 1.7597 ν4 70.00 R8 −95.265 d8 = 0.609 R9−2.793 d9 = 0.250 nd5 1.5634 ν5 40.00 R10 −7.319 d10 = 0.324 R11 1.178d11 = 0.862 nd6 1.5910 ν6 50.13 R12 1.177301 d12 = 0.649 R13 ∞ d13 =0.210 ndg 1.5168 νg 64.17 R14 ∞ d14 = 0.645

Table 10 shows the aspherical surface data of each lens of the cameraoptical lens 30 in embodiment 3 of the present invention.

TABLE 10 Conic Index Aspherical Surface Index k A4 A6 A8 A10 A12 A14 A16R1 −3.4617E−01 −0.013023476 0.004487874 −0.013700595 0.014186568−0.009807063 0.004026308 −0.000898585 R2 3.3004E+00 −0.023462833−0.047673365 0.036480878 0.00330182 −0.014852796 0.003151778−0.001005454 R3 4.7953E+00 0.014597571 −0.043380374 0.0008991280.042649544 −0.022782598 −0.00025358 −0.000562188 R4 2.5891E+02−0.017564025 0.01041552 −0.12355187 0.078436742 0.01617067 −0.01483808−0.000342991 R5 1.7826E+01 −0.11316132 0.00311992 −0.039351996−0.034433868 0.085964521 −0.030888705 0.000881102 R6 −2.7809E+01−0.010572507 0.029798457 −0.14243037 0.19794894 −0.12721771 0.032079474−0.00126782 R7 −8.5079E+01 −0.027131463 −0.006507495 0.068924451−0.059832344 −0.001996571 0.026329364 −0.010193212 R8 9.6212E+02−0.012185221 −0.07355078 0.12831081 −0.09694177 0.041535779 −0.007500804−0.000265839 R9 −2.9665E+01 0.096071842 −0.30034378 0.3966953 −0.43650720.30540911 −0.11618529 0.017812758 R10 1.2621E+01 −0.14818897 0.21018292−0.26180718 0.17488738 −0.065056622 1.27E−02 −9.57E−04 R11 −4.9547E+00−0.14818897 0.028817405 −0.0035601 2.88463E−05 4.46E−05 2.51E−06−1.03E−06 R12 −3.9017E+00 −0.12130353 0.017727742 −0.0027403120.000178701 2.24E−06 −7.37E−07 1.56E−08

Table 11 and table 12 show the inflexion points and the arrest pointdesign data of the camera optical lens 30 lens in embodiment 3 of thepresent invention.

TABLE 11 Inflexion point Inflexion point Inflexion point Inflexion pointnumber position 1 position 2 position 3 P1R1 1 1.095 P1R2 1 1.065 P2R1 11.075 P2R2 3 0.415 1.065 1.135 P3R1 2 0.375 1.015 P3R2 2 0.625 1.275P4R1 1 1.045 P4R2 2 0.905 1.215 P5R1 1 1.425 P5R2 1 1.425 P6R1 1 0.535P6R2 1 0.695

TABLE 12 Arrest point number Arrest point position 1 Arrest pointposition 2 P1R1 0 P1R2 0 P2R1 0 P2R2 1 0.605 P3R1 2 0.615 1.185 P3R2 11.065 P4R1 1 1.185 P4R2 0 P5R1 0 P5R2 0 P6R1 1 1.125 P6R2 1 1.685

FIG. 10 and FIG. 11 show the longitudinal aberration and lateral colorschematic diagrams after light with a wavelength of 486.1 nm, 587.6 nmand 656.3 nm passes the camera optical lens 30 in the third embodiment.FIG. 12 shows the field curvature and distortion schematic diagramsafter light with a wavelength of 587.6 nm passes the camera optical lens30 in the third embodiment.

As shown in Table 13, the third embodiment satisfies the variousconditions.

In this embodiment, the pupil entering diameter of the camera opticallens is 2.1789 mm, the full vision field image height is 3.512 mm, thevision field angle in the diagonal direction is 80.62°, it haswide-angle and is ultra-thin, its on-axis and off-axis chromaticaberrations are fully corrected, and it has excellent opticalcharacteristics.

TABLE 13 Embodiment Embodiment 1 Embodiment 2 3 f 4.176 4.050 4.140 f122.040 5.331 33.881 f2 6.587 19.526 6.329 f3 −9.089 −7.500 −9.312 f47.256 6.391 6.917 f5 −8.515 −12.535 −8.181 f6 8.094 46.399 7.345 f125.320 4.208 5.590 (R1 + R2)/(R1 − R2) −19.994 −4.193 −36.888 (R3 +R4)/(R3 − R4) −1.379 −2.075 −1.369 (R5 + R6)/(R5 − R6) 2.761 2.481 2.740(R7 + R8)/(R7 − R8) −0.919 −0.357 −0.890 (R9 + R10)/(R9 − R10) −2.204−3.359 −2.234 (R11 + R12)/(R11 − R12) 146.180 17.834 2741.859 f1/f 5.2781.316 8.184 f2/f 1.577 4.821 1.529 f3/f −2.176 −1.852 −2.249 f4/f 1.7381.578 1.671 f5/f −2.039 −3.095 −1.976 f6/f 1.938 11.457 1.774 f12/f1.274 1.039 1.350 d1 0.358 0.234 0.341 d3 0.572 0.597 0.563 d5 0.2770.222 0.313 d7 0.339 0.429 0.342 d9 0.254 0.464 0.250 d11 0.875 0.9150.862 Fno 1.900 2.000 1.900 TTL 5.374 5.185 5.413 d1/TTL 0.067 0.0450.063 d3/TTL 0.106 0.115 0.104 d5/TTL 0.052 0.043 0.058 d7/TTL 0.0630.083 0.063 d9/TTL 0.047 0.089 0.046 d11/TTL 0.163 0.177 0.159 n1 1.75592.0303 1.7310 n2 1.6089 1.5294 1.6183 n3 1.5970 1.6339 1.5774 n4 1.75772.0691 1.7597 n5 1.5309 1.5690 1.5634 n6 1.5780 1.5186 1.5910 v1 36.433644.4718 29.9999 v2 70.0002 30.0717 70.0003 v3 24.9744 20.9985 24.6222 v470.0009 69.0067 70.0005 v5 40.0009 56.1830 40.0007 v6 50.9779 69.006750.1308

It is to be understood, however, that even though numerouscharacteristics and advantages of the present exemplary embodiments havebeen set forth in the foregoing description, together with details ofthe structures and functions of the embodiments, the disclosure isillustrative only, and changes may be made in detail, especially inmatters of shape, size, and arrangement of parts within the principlesof the invention to the full extent indicated by the broad generalmeaning of the terms where the appended claims are expressed.

What is claimed is:
 1. A camera optical lens comprising, from an objectside to an image side in sequence: a first lens having a positiverefractive power, a second lens having a positive refractive power, athird lens having a negative refractive power, a fourth lens having apositive refractive power, a fifth lens having a negative refractivepower, and a sixth lens having a positive refractive power; wherein thecamera optical lens further satisfies the following conditions:0.5≤f1/f≤10;1.7≤n1≤2.2;1.7≤n4≤2.2;8.92≤(R11+R12)/(R11−R12)≤4112.79; where f: a focal length of the cameraoptical lens; f1: a focal length of the first lens; n1: a refractiveindex of the first lens; n4: a refractive index of the fourth lens; R11:a curvature radius of the object side surface of the sixth lens; R12: acurvature radius of the image side surface of the sixth lens.
 2. Thecamera optical lens as described in claim 1, wherein the first lens ismade of glass material, the second lens is made of plastic material, thethird lens is made of plastic material, the fourth lens is made of glassmaterial, the fifth lens is made of plastic material, the sixth lens ismade of plastic material.
 3. The camera optical lens as described inclaim 1 further satisfying the following conditions:0.91≤f1/f≤9.09;1.72≤n1≤2.12;1.73≤n4≤2.13;0.081≤d3/TTL≤0.148; where d3: a thickness on-axis of the third lens;TTL: a total optical length from the object side surface of the firstlens to the image surface along the optic axis of the camera opticallens.
 4. The camera optical lens as described in claim 1, wherein firstlens has a convex object side surface and a concave image side surface;the camera optical lens further satisfies the following conditions:−73.78≤(R1+R2)/(R1−R2)≤−2.8;0.02≤d1/TTL≤0.1; where R1: a curvature radius of object side surface ofthe first lens; R2: a curvature radius of image side surface of thefirst lens; d1: a thickness on-axis of the first lens; TTL: a totaloptical length from the object side surface of the first lens to theimage surface along the optic axis of the camera optical lens.
 5. Thecamera optical lens as described in claim 4 further satisfying thefollowing conditions:−46.11≤(R1+R2)/(R1−R2)≤−3.49;0.04≤d1/TTL≤0.08.
 6. The camera optical lens as described in claim 1,wherein the second lens has a convex object side surface and a concaveimage side surface; the camera optical lens further satisfies thefollowing conditions:0.76≤f2/f≤7.23;−4.15≤(R3+R4)/(R3−R4)≤−0.91;0.05≤d3/TTL≤0.17; where f: the focal length of the camera optical lens;f2: a focal length of the second lens; R3: a curvature radius of theobject side surface of the second lens; R4: a curvature radius of theimage side surface of the second lens; d3: a thickness on-axis of thesecond lens; TTL: a total optical length from the object side surface ofthe first lens to the image surface along the optic axis of the cameraoptical lens.
 7. The camera optical lens as described in claim 6 furthersatisfying the following conditions:1.22≤f2/f≤5.79;−2.59≤(R3+R4)/(R3−R4)≤−1.14;0.08≤d3/TTL≤0.14.
 8. The camera optical lens as described in claim 1,wherein the third lens has a convex object side surface and a concaveimage side surface; the camera optical lens further satisfies thefollowing conditions:−4.5≤f3/f≤−1.23;1.24≤(R5+R6)/(R5−R6)≤4.14;0.02≤d5/TTL≤0.09; where f: the focal length of the camera optical lens;f3: a focal length of the third lens; R5: a curvature radius of theobject side surface of the third lens; R6: a curvature radius of theimage side surface of the third lens; d5: a thickness on-axis of thethird lens; TTL: a total optical length from the object side surface ofthe first lens to the image surface along the optic axis of the cameraoptical lens.
 9. The camera optical lens as described in claim 8 furthersatisfying the following conditions:−2.81≤f3/f≤−1.54;1.99≤(R5+R6)/(R5−R6)≤3.31;0.03≤d5/TTL≤0.07.
 10. The camera optical lens as described in claim 1,wherein the fourth lens has a convex object side surface and a conveximage side surface; the camera optical lens further satisfies thefollowing conditions:0.79≤f4/f≤2.61;−1.84≤(R7+R8)/(R7−R8)≤−0.24;0.03≤d7/TTL≤0.12; where f: the focal length of the camera optical lens;f4: a focal length of the fourth lens; R7: a curvature radius of theobject side surface of the fourth lens; R8: a curvature radius of theimage side surface of the fourth lens; d7: a thickness on-axis of thefourth lens; TTL: a total optical length from the object side surface ofthe first lens to the image surface along the optic axis of the cameraoptical lens.
 11. The camera optical lens as described in claim 10further satisfying the following conditions:1.26≤f4/f≤2.09;−1.15≤(R7+R8)/(R7−R8)≤−0.3;0.05≤d7/TTL≤0.1.
 12. The camera optical lens as described in claim 1,wherein the fifth lens has a concave object side surface and a conveximage side surface; the camera optical lens further satisfies thefollowing conditions:−6.19≤f5/f≤−1.32;−6.72≤(R9+R10)/(R9−R10)≤−1.47;0.02≤d9/TTL≤0.13; where f: the focal length of the camera optical lens;f5: a focal length of the fifth lens; R9: a curvature radius of theobject side surface of the fifth lens; R10: a curvature radius of theimage side surface of the fifth lens; d9: a thickness on-axis of thefifth lens; TTL: a total optical length from the object side surface ofthe first lens to the image surface along the optic axis of the cameraoptical lens.
 13. The camera optical lens as described in claim 12further satisfying the following conditions:−3.87≤f5/f≤−1.65;−4.2≤(R9+R10)/(R9−R10)≤−1.84;0.04≤d9/TTL≤0.11.
 14. The camera optical lens as described in claim 1,wherein the sixth lens has a convex object side surface and a concaveimage side surface; the camera optical lens further satisfies thefollowing conditions:0.89≤f6/f≤17.19;0.08≤d11/TTL≤0.26; where f: the focal length of the camera optical lens;f6: a focal length of the sixth lens; d11: a thickness on-axis of thesixth lens; TTL: a total optical length from the object side surface ofthe first lens to the image surface along the optic axis of the cameraoptical lens.
 15. The camera optical lens as described in claim 14further satisfying the following conditions:1.42≤f6/f≤13.75;14.27≤(R11+R12)/(R11−R12)≤3290.23;0.13≤d11/TTL≤0.21.
 16. The camera optical lens as described in claim 1further satisfying the following condition:0.52≤f12/f≤2.03; where f12: a combined focal length of the first lensand the second lens; f: the focal length of the camera optical lens. 17.The camera optical lens as described in claim 16 further satisfying thefollowing condition:0.83≤f12/f≤1.62.
 18. The camera optical lens as described in claim 1,wherein the total optical length TTL of the camera optical lens is lessthan or equal to 5.95 mm.
 19. The camera optical lens as described inclaim 18, wherein the total optical length TTL of the camera opticallens is less than or equal to 5.68 mm.
 20. The camera optical lens asdescribed in claim 1, wherein a F number of the camera optical lens isless than or equal to 2.06.
 21. The camera optical lens as described inclaim 20, wherein the F number of the camera optical lens is less thanor equal to 2.02.
 22. The camera optical lens as described in claim 1,wherein the first lens has a convex object side surface and a concaveimage side surface, the second lens has a convex object side surface anda concave image side surface, the third lens has a convex object sidesurface and a concave image side surface, the fourth lens has a convexobject side surface and a convex image side surface, the fifth lens hasa concave object side surface and a convex image side surface, the sixthlens has a convex object side surface and a concave image side surface.